Fremont: Multi-vehicle crash blocks four lanes on Interstate 880

FREMONT -- All lanes are blocked on northbound Interstate 880 following a four-car crash Wednesday afternoon, according to the California Highway Patrol.

There is no estimated time for reopening the lanes.

The crash occurred about 4:30 p.m. on the freeway just north of Thornton Avenue. Several drivers were trapped in their cars but their conditions were not immediately available.

The cause of the crash was not yet known, but at least one car rolled over and landed on its roof, the CHP reported. A white Toyota 4Runner, a blue Volkswagen and two other vehicles were involved in the crash, according to the CHP.